Self-Adhesive Bags
Self-Adhesive Bags & Custom Poly Mailers
From e-commerce shipping to retail display, Heyi Custom Bags manufactures self-adhesive bags and custom printed poly mailers in clear, frosted, white and compostable materials.
Types: custom printed poly mailers, “Thank You” printed mailers, compostable poly mailers, clear OPP self-seal bags, OPP header bags with hang hole, PE self-adhesive envelope bags, milky white frosted self-adhesive bags, compostable self-adhesive bags and glassine paper mailers.
Options: permanent or resealable adhesive strips, double adhesive for returns, tamper-evident closures, hang holes, custom thickness, and 1- to multi-color logo printing.
For: e-commerce brands, apparel and accessories, fulfillment centers, wholesalers and retail packaging.
Request a free quote with your size and design — we’ll send fast samples.
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Self-Adhesive Bags & Poly Mailers FAQ
What thickness should a custom poly mailer be?
0.06 mm (60 µm) suits apparel and soft goods; 0.08–0.10 mm is recommended for heavier parcels or boxed items. Our poly mailers are co-extruded PE with a permanent self-seal strip.
What is the MOQ for custom printed poly mailers?
5,000 pieces per size and print design. Heyi Custom Bags produces for e-commerce brands, 3PLs and wholesalers who ship in volume from our factories in Dongguan, China and Hai Phong, Vietnam.
Can poly mailers be recycled or compostable?
Yes. We offer mono-material PE mailers for recycling, GRS-certified recycled-content mailers, and compostable PLA/PBAT mailers for brands that need a plastic-free option.
What is the difference between a self-adhesive bag and a poly mailer?
A self-adhesive bag (OPP or PE) is a thin, clear or frosted bag with a peel-and-seal flap for retail display and product protection; a poly mailer is a thicker, opaque, tear-resistant shipping bag with a tamper-evident seal.